Additional Effects of Pilates Breathing and Diaphragmatic Breathing Combined With Moderate Intensity Continuous Treadmill Training on Blood Pressure, Chest Expansion, Pulmonary Function and Quality Of Life in Pre-hypertensive Patients

April 7, 2026 updated by: Foundation University Islamabad

Pre-hypertension is defined as systolic blood pressure between 120-139mmHg or diastolic blood pressure between 80-89mmHg and is considered a risk factor for developing hypertension. Early lifestyle interventions such as aerobic exercise and breathing techniques may help prevent progression to hypertension. This randomised controlled trial aims to determine the additional effects of pilates breathing and diaphragmatic breathing combined with moderate-intensity continuous treadmill training on blood pressure, chest expansion, pulmonary function and quality of life in pre-hypertensive patients.

A total of 45 participants will be randomly allocated into three groups:

treadmill training with pilates breathing, tredmill training with diaphragmtic brething and treadmill training alone. The intervention will be conducted for 6 weeks. Outcome measures including blood pressure, pulmonary function, chest expansion and quality of life will be assesed before and after the intervention.

Study Overview

Detailed Description

Pre-hypertension is defined as systolic blood pressure between 120-139mmHg or diastolic blood pressure between 80-89mmHg.

This study is a three-arm parallel randomized controlled trial designed to evaluate the additional effects of pilates breathing and diaphragmatic breathing combined with moderate-intensity continuous treadmill training (MICT) in individuals with prehypertension.

A total of 45 participants aged 20-55 years diagnosed with prehypertension will be recruited from the Rehabilitation OPD of Fauji Foundation Hospital Rawalpindi. Participants will be randomly allocated into three groups:

Group A (Pilates breathing + treadmill training), Group B (Diaphragmatic breathing + treadmill training), and Group C (Treadmill training only). The intervention will be performed three times per week for six weeks. Treadmill training will follow a moderate-intensity continuous training protocol based on 55-70% of maximum heart rate. Breathing exercises will be performed for 10-15 minutes per session. Data will be analyzed using SPSS software.

Study Type

Interventional

Enrollment (Estimated)

45

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Prehypertensive individuals (SBP 120-139 mmHg or DBP 80-89 mmHg)
  • Age 20-55 years
  • Both male and female
  • Sedentary individuals according to IPAQ
  • Willing to participate and provide informed consent

Exclusion Criteria:

  • Diagnosed hypertension (≥140/90 mmHg)
  • Cardiopulmonary diseases (COPD, asthma, CAD, heart failure)
  • Musculoskeletal conditions preventing exercise
  • Neurological disorders
  • Pregnancy
  • Participation in structured exercise in last 3 months

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Treadmill training with Pilates breathing
Participants will perform moderate-intensity continuous treadmill training combined with pilates breathing exercises three times per week for six weeks.

Controlled lateral breathing technique focusing on rib cage expansion and core activation performed for 10-15 minutes, with low intensity, the perceived effort should be 3-4/10, with 3 days/week. A 06 weeks protocol will be followed.

Steps: Patient in neutral spine position and hands placed on rib cage and abdomen. Inhale deeply expanding the ribs laterally. Exhale drawing the navel inward to engage core muscles.

Experimental: Treadmill training with diaphragmatic breathing
Participants will perform moderate-intensity continuous treadmill training combined with diaphragmatic breathing exercises three times per week for six weeks.

Slow deep breathing emphasizing diaphragmatic movement performed for 10-15 minutes, with low intensity, the perceived effort should be 3-4/10, with 3 days/week. A 06 weeks protocol will be followed.

Steps: Patient in supine or in seated position. Place one hand on chest and one below the ribs. Inhale slowly through the nose expanding the abdomen. Exhale through pursed lips, allowing the abdomen to fall inward and chest should remain still.

Active Comparator: Treadmill training
Participants will perform moderate-intensity continuous treadmill training only, three times per week for six weeks.
70% of maximum heart rate for 20-35 minutes, three sessions per week for six weeks.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Blood Pressure (SBP and DBP)
Time Frame: 06 weeks

Evaluation will be performed using an sphygmomanometer. Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP) will be recorded in millimeters of mercury (mmHg) under standardized conditions after adequate rest in a seated position.

Blood pressure values will be recorded as continuous variables. Higher values indicate worse cardiovascular status, while lower values indicate improvement in blood pressure control.

06 weeks
Chest Expansion
Time Frame: 06 weeks

Evaluation will be performed by measuring chest expansion using a measuring tape at three anatomical levels: axillary, nipple, and xiphoid. Measurements will be taken as the difference (in centimeters, cm) between maximum chest circumference at full inspiration and at full expiration at each level.

Higher values indicate greater chest wall mobility and improved respiratory function, whereas lower values indicate restricted chest expansion.

06 weeks
Pulmonary Function Test
Time Frame: 06 weeks

Evaluation will be performed using a spirometer machine in accordance with standard guidelines. The parameters assessed will include Forced Expiratory Volume in 1 second (FEV₁), Forced Vital Capacity (FVC), and FEV₁/FVC ratio. Values will be recorded in liters (L) and as percentage of predicted values (%) based on age, sex, height, and ethnicity.

Higher values of FEV₁ and FVC indicate better pulmonary function, while a higher FEV₁/FVC ratio indicates reduced airway obstruction and improved respiratory status.

06 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 28, 2026

Primary Completion (Estimated)

May 15, 2026

Study Completion (Estimated)

May 15, 2026

Study Registration Dates

First Submitted

March 27, 2026

First Submitted That Met QC Criteria

April 7, 2026

First Posted (Actual)

April 14, 2026

Study Record Updates

Last Update Posted (Actual)

April 14, 2026

Last Update Submitted That Met QC Criteria

April 7, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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